interface IStu {
  name: string
  sex: string | number
  score: number
  height: number | string
  study: (subject: string) => string
  play?: (game: string) => void
}

const stu1: IStu = {
  name: '吕布',
  sex: '男',
  score: 98,
  height: '180cm',
  study(subject) {
    return '学习' + subject
  },
}

export { }